CN202888193U - Solar battery and assembly thereof - Google Patents
Solar battery and assembly thereof Download PDFInfo
- Publication number
- CN202888193U CN202888193U CN 201220590922 CN201220590922U CN202888193U CN 202888193 U CN202888193 U CN 202888193U CN 201220590922 CN201220590922 CN 201220590922 CN 201220590922 U CN201220590922 U CN 201220590922U CN 202888193 U CN202888193 U CN 202888193U
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- China
- Prior art keywords
- main grid
- grid line
- line electrode
- welding
- electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a solar battery comprising a semiconductor substrate and an electrode arranged on the semiconductor substrate, wherein the electrode comprises a front face main grid line electrode, a front face thin grid line electrode and a back face main grid electrode; and the front face main grid line electrode is 2.1-3.0mm wide. Not only can the welding quality be ensured, but also the serial-connection resistance can be reduced by designing the width of a main grid line on the front face to be 2.1-3.0mm, so that the current is improved, the power of the assembly is improved, and the working efficiency of a solar panel can be greatly improved. The utility model further discloses an assembly.
Description
Technical field
The utility model relates to the Application of Solar Energy field, relates in particular to a kind of solar cell and assembly thereof.
Background technology
The solar cell of the different size that solar module is cut open by solar battery sheet or by laser machine is combined and is consisted of.Because electric current and the voltage of monolithic solar cell sheet are all very little, then we are their the acquisition high voltage of connecting first, more in parallel obtain high electric current after, then export by a diode.
Chinese patent literature CN 202189810U discloses a kind of solar cell panel assembly, by the epoxy resin backboard, solar power generation unit and PETG film stack gradually from bottom to top and form, all be coated with between above-mentioned each layer be used to the adhesive that is adhesively fixed, described solar power generation unit is by the solar energy and semiconductor wafer, be arranged on negative electricity pole piece and the anode electrode sheet that is arranged on solar energy and semiconductor wafer shady face on the solar energy and semiconductor wafer sensitive surface, described anode electrode sheet is connected with the negative electricity pole piece of adjacent solar energy and semiconductor wafer, to realize being connected in series of a plurality of solar energy and semiconductor wafers, above-mentioned patent documentation provides a kind of energy output of each unit are that can not make to reduce, can reduce the solar panel that solar battery cell breaks, but still there is following problem in it: the negative electricity pole piece of anode electrode slice and adjacent solar energy and semiconductor wafer corresponding being connected one by one wherein, and in the practical application, in order to improve the power of cell piece and assembly, thereby require on the one hand electrode slice with the cell piece sensitive surface to narrow down and increase light-receiving area, require on the other hand the shady face electrode slice is broadened, thereby the cross-sectional area that increases back side welding band reduces series resistance, and then reduces the component power loss.But just there is certain paradox in the situation one to one at anode electrode sheet and negative electricity pole piece, causes to improve to greatest extent the power of cell piece and assembly.In addition, because the sensitive surface electrode slice need to be welded to connect with welding, if solder skip, empty phenomenon of welding appear in the electrode slice width too little welding that can affect again welding easily in the subregion, so that welding can't be well and the electrode slice welding, thereby the electric current that affects electrode slice compiles.Therefore, the width of electrode slice, the especially width of sensitive surface cell piece for the power material impact of whole solar module, also are relatively more crucial in a product design parameters.
The utility model content
The technical problem that the utility model solves is: provide a kind of novel solar battery structure and assembly thereof, the purpose that realize reducing series resistance, improves electric current and component power.
For reaching this purpose, the utility model by the following technical solutions
A kind of solar cell comprises semiconductor substrate and the electrode that is arranged on the semiconductor substrate, and described electrode comprises front main grid line electrode, positive thin gate line electrode and back side main grid line electrode; Described front main grid line electrode width is 2.1～3.0 ㎜.
Further, the thin gate line electrode in described front is many and is with described front main grid line electrode and to intersect arranges.
Further, described front main grid line electrode width is 2.1～2.5 ㎜, and the width of described back side main grid line electrode is 0.5～4 ㎜.
Further, described front main grid line electrode and back side main grid line electrode are the segmentation engraved structure.
A kind of solar module, comprise adjacent setting and interconnective at least two solar battery sheets and connect the welding of described two solar battery sheets, described solar battery sheet comprises sensitive surface and shady face, the positive thin gate line electrode that described sensitive surface is provided with front main grid line electrode and is connected with front main grid line electrode, described shady face is provided with back side main grid line electrode, and described front main grid line electrode width is 2.1～3.0 ㎜.
Further, described front main grid line electrode width is 2.1～2.5 ㎜, and the thin gate line electrode in described front is many and is with described front main grid line electrode and to intersect arranges.
Further, described welding comprise the first welding that is connected with described back side main grid line electrode and connect described the first welding and with vertically disposed the second welding of the first welding.
Further, the cross-sectional area of described the first welding is less than the cross-sectional area of the second welding.
The beneficial effects of the utility model are: be designed to width 2.1-3.0mm by the main grid with the front, reduced series resistance when guaranteeing welding quality, improve electric current, improve the power of assembly, can increase substantially the operating efficiency of solar panel.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is first embodiment solar battery front side structural representation.
Fig. 2 is first embodiment rear surface of solar cell structural representation.
Fig. 3 is first embodiment solar battery sheet string shady face structural representation.
Fig. 4 is second embodiment solar battery front side structural representation.
Fig. 5 is second embodiment rear surface of solar cell structural representation.
Fig. 6 is second embodiment solar battery sheet string shady face structural representation.
Fig. 7 is the 3rd embodiment solar battery front side structural representation.
Fig. 8 is the 3rd embodiment rear surface of solar cell structural representation.
Fig. 9 is the 3rd embodiment solar battery sheet string shady face structural representation.
Among the figure:
1, front main grid line electrode; 2, back side main grid line electrode; 3, thin gate line electrode; 4, the first welding; 5, the second welding; 6, the first solar cell; 7, the second solar cell; 8, the 3rd solar cell; 9, segmentation hollow out electrode.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Embodiment 1:
Shown in Fig. 1～3, in present embodiment, a kind of solar cell described in the utility model includes semiconductor substrate, described semiconductor substrate sensitive surface becomes the front, described semiconductor substrate front is provided with three front main grid line electrodes 1 for collected current, and 85 ° of many thin gate line electrodes 3 that are connected in these front main grid line electrodes, and four back side main grid line electrodes 2 that are used for collected current that are positioned at this semiconductor substrate back side; One of the centre of described three front main grid line electrodes 1 is positioned on the semiconductor substrate central axis, article four, back side main grid line electrode 2 is evenly distributed on the semiconductor substrate back side, front main grid line electrode 1 does not all overlap with the position of described back side main grid line electrode 2, the width of front main grid line electrode 1 is 2.4mm, the width of back side main grid line electrode 2 is 3mm, all be connected with the first welding 4 that width is 2.4 ㎜ on every front main grid line electrode 1, run through whole piece second welding 5 of semiconductor substrate with main grid line electrode 2 vertical being provided with of the described back side, described the second welding 5 width are 3 ㎜; Described solar module includes three above-mentioned solar cells, described three solar cell sensitive surfaces arrange in the same way, wherein the second welding 5 of the first welding 4 on the first solar cell 6 and the second solar cell 7 is welded to connect, the first welding 4 on the second solar cell 7 and the second welding 5 of the 3rd solar cell 8 are welded to connect, form the cell piece string, glass is respectively adopted in the top and bottom of cell piece string, and the encapsulation of EVA film obtains solar module.
Embodiment 2:
Shown in Fig. 4～6, in present embodiment, a kind of solar cell described in the utility model includes semiconductor substrate, described semiconductor substrate sensitive surface becomes the front, described semiconductor substrate front is provided with three front main grid line electrodes 1 for collected current, and many thin gate line electrodes 3 that are vertically connected at these front main grid line electrodes 1, and four back side main grid line electrodes 2 that are used for collected current that are positioned at this semiconductor substrate back side; One of the centre of described three front main grid line electrodes 1 is positioned on the semiconductor substrate central axis, article four, back side main grid line electrode 2 asymmetric distribution are at the semiconductor substrate back side, its integral body is to 10 ㎜ that offset to one side with respect to the semiconductor substrate center line, front main grid line electrode 1 does not all overlap with the position of described back side main grid line electrode 2, the width of front main grid line electrode 1 is 2.2mm, the width of back side main grid line electrode 2 is 3.5mm, all being connected with width on every front main grid line electrode 1 is 2.2 ㎜ the first weldings 4, run through the second welding 5 of the whole piece of semiconductor substrate with main grid line electrode 2 vertical being provided with of the described back side, described the second welding 5 width are 3.5 ㎜; Described solar module includes three above-mentioned solar cells, described three solar cell sensitive surfaces arrange in the same way, wherein the second welding 5 of the first welding 4 on the first solar cell 6 and the second solar cell 7 is welded to connect, the first welding 4 on the second solar cell 7 and the second welding 5 of the 3rd solar cell 8 are welded to connect, form the cell piece string, glass is respectively adopted in the top and bottom of cell piece string, and the encapsulation of EVA film obtains solar module.
Embodiment 3:
Shown in Fig. 7～9, in present embodiment, a kind of solar cell described in the utility model includes semiconductor substrate, described semiconductor substrate sensitive surface becomes the front, described semiconductor substrate front is provided with three front main grid line electrodes 1 for collected current, and many thin gate line electrodes 3 that are vertically connected at these front main grid line electrodes 1, and four back side main grid line electrodes 2 that are used for collected current that are positioned at this semiconductor substrate back side; One of the centre of described three front main grid line electrodes 1 is positioned on the semiconductor substrate central axis, article four, back side main grid line electrode 2 is evenly distributed on the semiconductor substrate back side, front main grid line electrode 1 does not all overlap with the position of described back side main grid line electrode 2, wherein front main grid line electrode 1 is segmentation hollow out electrode 9, be 8 segment electrodes, the width of front main grid line electrode 1 is 2.1mm, the width of back side main grid line electrode 2 is 4mm, all being connected with width on every front main grid line electrode 1 is 2.1 ㎜ the first weldings 4, run through the second welding 5 of the whole piece of semiconductor substrate with main grid line electrode 2 vertical being provided with of the described back side, described the second welding 5 width are 4 ㎜; Described solar module includes three above-mentioned solar cells, described three solar cell sensitive surfaces arrange in the same way, wherein the second welding 5 of the first welding 4 on the first solar cell 6 and the second solar cell 7 is welded to connect, the first welding 4 on the second solar cell 7 and the second welding 5 of the 3rd solar cell 8 are welded to connect, form the cell piece string, glass is respectively adopted in the top and bottom of cell piece string, and the encapsulation of EVA film obtains solar module.
What need statement is; above-mentioned embodiment only is preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the variation that any those skilled in the art of being familiar with expected easily or replacement all should be encompassed in the protection range of the present utility model.
Claims (8)
1. a solar cell comprises semiconductor substrate and the electrode that is arranged on the semiconductor substrate, it is characterized in that, described electrode comprises front main grid line electrode, positive thin gate line electrode and back side main grid line electrode; Described front main grid line electrode width is 2.1～3.0 ㎜.
2. solar cell according to claim 1 is characterized in that, the thin gate line electrode in described front is many and is with described front main grid line electrode and to intersect arranges.
3. solar cell according to claim 1 is characterized in that, described front main grid line electrode width is 2.1～2.5 ㎜, and the width of described back side main grid line electrode is 0.5～4 ㎜.
4. solar cell according to claim 1 is characterized in that, described front main grid line electrode and back side main grid line electrode are the segmentation engraved structure.
5. solar module, comprise adjacent setting and interconnective at least two solar battery sheets and connect the welding of described two solar battery sheets, it is characterized in that: described solar battery sheet comprises sensitive surface and shady face, the positive thin gate line electrode that described sensitive surface is provided with front main grid line electrode and is connected with front main grid line electrode, described shady face is provided with back side main grid line electrode, and described front main grid line electrode width is 2.1～3.0 ㎜.
6. solar module according to claim 5 is characterized in that, described front main grid line electrode width is 2.1～2.5 ㎜, and the thin gate line electrode in described front is many and is with described front main grid line electrode and to intersect arranges.
7. solar module according to claim 6 is characterized in that, described welding comprise the first welding that is connected with described back side main grid line electrode and connect described the first welding and with vertically disposed the second welding of the first welding.
8. solar module according to claim 7 is characterized in that, the cross-sectional area of described the first welding is less than the cross-sectional area of the second welding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590922 CN202888193U (en) | 2012-11-09 | 2012-11-09 | Solar battery and assembly thereof |
| JP2013003671U JP3185889U (en) | 2012-11-09 | 2013-06-27 | Solar cell and solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590922 CN202888193U (en) | 2012-11-09 | 2012-11-09 | Solar battery and assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888193U true CN202888193U (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220590922 Expired - Lifetime CN202888193U (en) | 2012-11-09 | 2012-11-09 | Solar battery and assembly thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3185889U (en) |
| CN (1) | CN202888193U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241405A (en) * | 2013-06-14 | 2014-12-24 | 新日光能源科技股份有限公司 | Electrode structure of solar cell and manufacturing method thereof |
| CN107195713A (en) * | 2017-06-06 | 2017-09-22 | 张家港协鑫集成科技有限公司 | Photovoltaic imbrication component |
| WO2018191831A1 (en) * | 2017-04-20 | 2018-10-25 | 泰州中来光电科技有限公司 | Densely-arranged solar cell string and preparation method, and assembly and system thereof |
| CN109016807A (en) * | 2018-07-24 | 2018-12-18 | 浙江爱旭太阳能科技有限公司 | For the molding crystal silicon solar batteries halftone of positive electrode hollow out |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623217A (en) * | 2019-01-31 | 2019-04-16 | 武汉三工智能装备制造有限公司 | Solar cell chip bonding machine |
-
2012
- 2012-11-09 CN CN 201220590922 patent/CN202888193U/en not_active Expired - Lifetime
-
2013
- 2013-06-27 JP JP2013003671U patent/JP3185889U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241405A (en) * | 2013-06-14 | 2014-12-24 | 新日光能源科技股份有限公司 | Electrode structure of solar cell and manufacturing method thereof |
| CN104241405B (en) * | 2013-06-14 | 2017-01-11 | 新日光能源科技股份有限公司 | Electrode structure of solar cell and manufacturing method thereof |
| WO2018191831A1 (en) * | 2017-04-20 | 2018-10-25 | 泰州中来光电科技有限公司 | Densely-arranged solar cell string and preparation method, and assembly and system thereof |
| CN107195713A (en) * | 2017-06-06 | 2017-09-22 | 张家港协鑫集成科技有限公司 | Photovoltaic imbrication component |
| CN107195713B (en) * | 2017-06-06 | 2023-11-24 | 合肥协鑫集成新能源科技有限公司 | Photovoltaic shingle assembly |
| CN109016807A (en) * | 2018-07-24 | 2018-12-18 | 浙江爱旭太阳能科技有限公司 | For the molding crystal silicon solar batteries halftone of positive electrode hollow out |
| CN109016807B (en) * | 2018-07-24 | 2023-12-01 | 浙江爱旭太阳能科技有限公司 | Crystalline silicon solar cell screen plate for positive electrode hollowed-out forming |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3185889U (en) | 2013-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |